code: def test_inplace(self):
      pdf, psdf = self.df_pair
  
      pser = pdf.a
      psser = psdf.a
  
      pdf["a"] = pdf["a"] + 10
      psdf["a"] = psdf["a"] + 10
  
      self.assert_eq(psdf, pdf)
      self.assert_eq(psser, pser)
  
imports: from datetime import datetime
  import unittest
  import numpy
  import pandas
  from pyspark import pandas
  from pyspark.testing.pandasutils import ComparisonTestBase
  from pyspark.testing.sqlutils import SQLTestUtils
label_desc: Use image node_id 9 for calling the FrameAttrsMixin obj's underlying member method code with example usage: obj.test_inplace() without return types